Average Co-Inventor Count = 2.92
ph-index = 5
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Sony Corporation (6 from 58,129 patents)
2. Seiko Epson Corporation (2 from 33,404 patents)
3. Tokyo R & D Co., Ltd. (2 from 28 patents)
4. Mitsubishi Denki Kabushiki Kaisha (1 from 21,351 patents)
5. The Nippon Synthetic Chemical Industry Co., Ltd. (1 from 82 patents)
6. Kyoritsu Chemical Co., Ltd. (1 from 14 patents)
10 patents:
1. 12083404 - Information processor and information processing method
2. 9939285 - Navigation apparatus
3. 9550910 - Aqueous metal surface treatment agent for lithium ion secondary battery
4. 9212928 - Navigation apparatus having screen changing function
5. 8791956 - Navigation device and map scroll processing method
6. 7970541 - Navigation device and map scroll processing method
7. 6107761 - Drive for electric vehicle and control method of the same
8. D400902 - Liquid crystal video projector
9. 5827148 - Variable speed drive unit for electric vehicle and variable speed
10. 5357577 - Vacuum tube microphone apparatus